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Your search keyword '"Benecke, Gunthard"' showing total 17 results
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17 results on '"Benecke, Gunthard"'

1. Huber-Norm Regularization for Linear Prediction Models

Author

Zadorozhnyi, Oleksandr, Benecke, Gunthard, Mandt, Stephan, Scheffer, Tobias, Kloft, Marius, Hutchison, David, Series editor, Kanade, Takeo, Series editor, Kittler, Josef, Series editor, Kleinberg, Jon M., Series editor, Mattern, Friedemann, Series editor, Mitchell, John C., Series editor, Naor, Moni, Series editor, Pandu Rangan, C., Series editor, Steffen, Bernhard, Series editor, Terzopoulos, Demetri, Series editor, Tygar, Doug, Series editor, Weikum, Gerhard, Series editor, Frasconi, Paolo, editor, Landwehr, Niels, editor, Manco, Giuseppe, editor, and Vreeken, Jilles, editor

Published
2016
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4. A customizable software for fast reduction and analysis of large X-ray scattering data sets: applications of the newDPDAKpackage to small-angle X-ray scattering and grazing-incidence small-angle X-ray scattering

Author

Benecke, Gunthard, primary, Wagermaier, Wolfgang, additional, Li, Chenghao, additional, Schwartzkopf, Matthias, additional, Flucke, Gero, additional, Hoerth, Rebecca, additional, Zizak, Ivo, additional, Burghammer, Manfred, additional, Metwalli, Ezzeldin, additional, Müller-Buschbaum, Peter, additional, Trebbin, Martin, additional, Förster, Stephan, additional, Paris, Oskar, additional, Roth, Stephan V., additional, and Fratzl, Peter, additional

Published
2014
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6. In-situ GISAXS investigation of polystyrene nanoparticle spray deposition onto a silicon substrate

Author

Herzog, Gerd, Benecke, Gunthard, Buffet, Adeline, Heidmann, Berit, Perlich, Jan, Risch, Johannes F.H., Santoro, Gonzalo, Schwartzkopf, Matthias, Yu, Shun, Wurth, Wilfried, Roth, Stephan V., Herzog, Gerd, Benecke, Gunthard, Buffet, Adeline, Heidmann, Berit, Perlich, Jan, Risch, Johannes F.H., Santoro, Gonzalo, Schwartzkopf, Matthias, Yu, Shun, Wurth, Wilfried, and Roth, Stephan V.

Abstract

We investigated the spray deposition and subsequent self-assembly during drying of a polystyrene nanoparticle dispersion with in situ grazing incidence small-angle X-ray scattering at high time resolution. During the fast deposition of the dispersion and the subsequent evaporation of the solvent, different transient stages of nanoparticle assembly can be identified. In the first stage, the solvent starts to evaporate without ordering of the nanoparticles. During the second stage, large-scale structures imposed by the breakup of the liquid film are observable. In this stage, the solvent evaporates further and nanoparticle ordering starts. In the late third drying stage, the nanoparticles self-assemble into the final layer structure., QC 20160208

Published
2013
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7. In situ grazing incidence small-angle X-ray scattering investigation of polystyrene nanoparticle spray deposition onto silicon

Author

Knut and Alice Wallenberg Foundation, Deutsches Elektronen-Synchrotron, Herzog, Gerd, Benecke, Gunthard, Buffet, Adeline, Heidmann, Berit, Perlich, Jan, Risch, Johannes F. H., Santoro, Gonzalo, Schwartzkopf, Matthias, Yu, Shun, Wurth, Wilfried, Roth, Stephan V., Knut and Alice Wallenberg Foundation, Deutsches Elektronen-Synchrotron, Herzog, Gerd, Benecke, Gunthard, Buffet, Adeline, Heidmann, Berit, Perlich, Jan, Risch, Johannes F. H., Santoro, Gonzalo, Schwartzkopf, Matthias, Yu, Shun, Wurth, Wilfried, and Roth, Stephan V.

Abstract

We investigated the spray deposition and subsequent self-assembly during drying of a polystyrene nanoparticle dispersion with in situ grazing incidence small-angle X-ray scattering at high time resolution. During the fast deposition of the dispersion and the subsequent evaporation of the solvent, different transient stages of nanoparticle assembly can be identified. In the first stage, the solvent starts to evaporate without ordering of the nanoparticles. During the second stage, large-scale structures imposed by the breakup of the liquid film are observable. In this stage, the solvent evaporates further and nanoparticle ordering starts. In the late third drying stage, the nanoparticles self-assemble into the final layer structure.

Published
2013

9. In Situ Grazing Incidence Small-Angle X-ray Scattering Investigation of Polystyrene Nanoparticle Spray Deposition onto Silicon

Author

Herzog, Gerd, primary, Benecke, Gunthard, additional, Buffet, Adeline, additional, Heidmann, Berit, additional, Perlich, Jan, additional, Risch, Johannes F. H., additional, Santoro, Gonzalo, additional, Schwartzkopf, Matthias, additional, Yu, Shun, additional, Wurth, Wilfried, additional, and Roth, Stephan V., additional

Published
2013
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10. From atoms to layers: in situ gold cluster growth kinetics during sputter deposition

Author

Schwartzkopf, Matthias, primary, Buffet, Adeline, additional, Körstgens, Volker, additional, Metwalli, Ezzeldin, additional, Schlage, Kai, additional, Benecke, Gunthard, additional, Perlich, Jan, additional, Rawolle, Monika, additional, Rothkirch, André, additional, Heidmann, Berit, additional, Herzog, Gerd, additional, Müller-Buschbaum, Peter, additional, Röhlsberger, Ralf, additional, Gehrke, Rainer, additional, Stribeck, Norbert, additional, and Roth, Stephan V., additional

Published
2013
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11. Influence of Nanoparticle Surface Functionalization on the Thermal Stability of Colloidal Polystyrene Films

Author

Herzog, Gerd, primary, Abul Kashem, Mottakin M., additional, Benecke, Gunthard, additional, Buffet, Adeline, additional, Gehrke, Rainer, additional, Perlich, Jan, additional, Schwartzkopf, Matthias, additional, Körstgens, Volker, additional, Meier, Robert, additional, Niedermeier, Martin A., additional, Rawolle, Monika, additional, Ruderer, Matthias A., additional, Müller-Buschbaum, Peter, additional, Wurth, Wilfried, additional, and Roth, Stephan V., additional

Published
2012
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12. Mechanisms of Bone Deformation and Fracture

Author

Gupta, Himadri, primary, Fratzl, Peter, additional, Kerschnitzki, Michael, additional, Krauss, Stefanie, additional, Seto, Jong, additional, Wagermaier, Wolfgang, additional, Benecke, Gunthard, additional, Boesecke, Peter, additional, Funari, Sergio, additional, Currey, John, additional, and Estevez, Jose, additional

Published
2010
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14. A customizable software for fast reduction and analysis of large X-ray scattering data sets: applications of the new DPDAK package to small-angle X-ray scattering and grazing-incidence small-angle X-ray scattering.

Author

Benecke, Gunthard, Wagermaier, Wolfgang, Chenghao Li, Schwartzkopf, Matthias, Flucke, Gero, Hoerth, Rebecca, Zizak, Ivo, Burghammer, Manfred, Metwalli, Ezzeldin, Müller-Buschbaum, Peter, Trebbin, Martin, Förster, Stephan, Paris, Oskar, Rotha, Stephan V., and Fratzl, Peter

Subjects
*COMPUTER software, *X-ray scattering, *SMALL-angle X-ray scattering
Abstract

X-ray scattering experiments at synchrotron sources are characterized by large and constantly increasing amounts of data. The great number of files generated during a synchrotron experiment is often a limiting factor in the analysis of the data, since appropriate software is rarely available to perform fast and tailored data processing. Furthermore, it is often necessary to perform online data reduction and analysis during the experiment in order to interactively optimize experimental design. This article presents an open-source software package developed to process large amounts of data from synchrotron scattering experiments. These data reduction processes involve calibration and correction of raw data, one- or two-dimensional integration, as well as fitting and further analysis of the data, including the extraction of certain parameters. The software, DPDAK (directly programmable data analysis kit), is based on a plug-in structure and allows individual extension in accordance with the requirements of the user. The article demonstrates the use of DPDAK for on- and offline analysis of scanning small-angle X-ray scattering (SAXS) data on biological samples and microfluidic systems, as well as for a comprehensive analysis of grazing-incidence SAXS data. In addition to a comparison with existing software packages, the structure of DPDAK and the possibilities and limitations are discussed. [ABSTRACT FROM AUTHOR]

Published
2014
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15. In Situ Grazing Incidence Small-Angle X-rayScattering Investigation of Polystyrene Nanoparticle Spray Depositiononto Silicon.

Author

Herzog, Gerd, Benecke, Gunthard, Buffet, Adeline, Heidmann, Berit, Perlich, Jan, Risch, Johannes F. H., Santoro, Gonzalo, Schwartzkopf, Matthias, Yu, Shun, Wurth, Wilfried, and Roth, Stephan V.

Subjects
*GRAZING, *DISEASE incidence, *X-ray scattering, *POLYSTYRENE, *NANOPARTICLES, *SILICON
Abstract

We investigated the spray depositionand subsequent self-assemblyduring drying of a polystyrene nanoparticle dispersion with in situgrazing incidence small-angle X-ray scattering at high time resolution.During the fast deposition of the dispersion and the subsequent evaporationof the solvent, different transient stages of nanoparticle assemblycan be identified. In the first stage, the solvent starts to evaporatewithout ordering of the nanoparticles. During the second stage, large-scalestructures imposed by the breakup of the liquid film are observable.In this stage, the solvent evaporates further and nanoparticle orderingstarts. In the late third drying stage, the nanoparticles self-assembleinto the final layer structure. [ABSTRACT FROM AUTHOR]

Published
2013
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17. Evidence for an elementary process in bone plasticity with an activation enthalpy of 1eV

Author

Gupta, Himadri S, Fratzl, Peter, Kerschnitzki, Michael, Benecke, Gunthard, Wagermaier, Wolfgang, and Kirchner, Helmut O.K

Abstract

The molecular mechanisms for plastic deformation of bone tissue are not well understood. We analysed temperature and strain-rate dependence of the tensile deformation behaviour in fibrolamellar bone, using a technique originally developed for studying plastic deformation in metals. We show that, beyond the elastic regime, bone is highly strain-rate sensitive, with an activation volume of ca0.6nm3. We find an activation energy of 1.1eV associated with the basic step involved in the plastic deformation of bone at the molecular level. This is much higher than the energy of hydrogen bonds, but it is lower than the energy required for breaking covalent bonds inside the collagen fibrils. Based on the magnitude of these quantities, we speculate that disruption of electrostatic bonds between polyelectrolyte molecules in the extrafibrillar matrix of bone, perhaps mediated by polyvalent ions such as calcium, may be the rate-limiting elementary step in bone plasticity.

Published
2007
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